40506204 has 24 divisors (see below), whose sum is σ = 96299280. Its totient is φ = 13247104.

The previous prime is 40506199. The next prime is 40506209. The reversal of 40506204 is 40260504.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40506199) and next prime (40506209).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40506209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31209 + ... + 32480.

It is an arithmetic number, because the mean of its divisors is an integer number (4012470).

Almost surely, 2^40506204 is an apocalyptic number.

It is an amenable number.

40506204 is an abundant number, since it is smaller than the sum of its proper divisors (55793076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40506204 is a wasteful number, since it uses less digits than its factorization.

40506204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63749 (or 63747 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 40506204 is about 6364.4484442880. The cubic root of 40506204 is about 343.4318071970.

Adding to 40506204 its reverse (40260504), we get a palindrome (80766708).

The spelling of 40506204 in words is "forty million, five hundred six thousand, two hundred four".